diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 2d97018..f45290d 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -271,6 +271,7 @@
 DEFINE_IDREG_READ_FUNC(id_aa64pfr1_el1)
 DEFINE_RENAME_IDREG_READ_FUNC(id_aa64pfr2_el1, ID_AA64PFR2_EL1)
 DEFINE_IDREG_READ_FUNC(id_aa64dfr0_el1)
+DEFINE_IDREG_READ_FUNC(id_aa64dfr1_el1)
 DEFINE_IDREG_READ_FUNC(id_afr0_el1)
 DEFINE_SYSREG_READ_FUNC(CurrentEl)
 DEFINE_SYSREG_READ_FUNC(ctr_el0)
@@ -645,6 +646,7 @@
 /* FEAT_GCS Registers */
 DEFINE_RENAME_SYSREG_RW_FUNCS(gcscr_el2, GCSCR_EL2)
 DEFINE_RENAME_SYSREG_RW_FUNCS(gcspr_el2, GCSPR_EL2)
+DEFINE_RENAME_SYSREG_RW_FUNCS(gcscr_el1, GCSCR_EL1)
 
 /* DynamIQ Shared Unit power management */
 DEFINE_RENAME_SYSREG_RW_FUNCS(clusterpwrdn_el1, CLUSTERPWRDN_EL1)